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The last 10 posts

Tuesday, May 15th 2007, 7:11pm

by jmduke7

It really depends on the requirement of the plant life, soil conditions, weather and etc... You can water your grass real heavy at first and then wait until you see the blades begin to roll or fold in. This indicates the turf needs moisture. Then you can set your controller accordingly. But this is a way to calibrate on southern lawns such as Centipede or St. Augustine. As far as the bedding areas, limit it to keeping the soil moist, but not real wet and be sure to put plenty of mulch or straw to shade the soil and keep moisture in. By doing this, you will train the roots to grow outward and deeper to where the water is and this will create a more drought tolerant landscape.

Tuesday, May 15th 2007, 5:04pm

by cmslll

Hi guys, the tuna can idea sounds like the way to go to me. The system seems to be watering enenly and doing a good job, I just thought that it was using too much water, but as I research I think that maybe its not. I think if I run it for only what it takes to water the yard without over watering I may be ok. The zones have been set on 10 to 15 minutes each. How much water would I need to put on the yard each time I water, in inches?

Tuesday, May 15th 2007, 1:58pm

by jmduke7

Good idea and good post Tom! I agree, I really don't think at this point your meter is wrong. I just think you need to control your watering cycles. One way to do this is to consider an ET based system. ET based systems record weather conditions today, and automatically adjust the watering requirement on the next day to accommodate for any loss in evaporation and transpiration (hence... ET).

Tuesday, May 15th 2007, 10:12am

by Tom

If your getting even coverage with the existing setup, by all means just reduce the runtimes.

how long are you watering your spray zones? and/or rotor zones?

With your high water usage you could benefit from an irrigation audit which would measure the actual application rate for each zone. With that info you could set your timer up for the correct runtimes. There may be a company in your area that offers the service.


Or, you could set out some cans (tuna cans will work well) and measure how much water accumulates in them over a given time(say 10 minutes). With that info you can set your timer up correctly.





Tuesday, May 15th 2007, 6:47am

by cmslll

Because of the 2" meter and pressure, I measured it @ 75psi I think that 60 to 65 gpm is being forced through the heads.
To solve the problem can I install a flow control to reduce the flow or could I just water for a much shorter peroid of time?????? [:D]

Tuesday, May 15th 2007, 3:55am

by Tom

you mentioned your sprinkler guy said the max flow is 30 to 35 gpm. As pressure increases there is more flow thru every sprinkler head. Its possible that you have very high pressure creating your high gpm usage. Have you measured the pressure?

Monday, May 14th 2007, 5:59pm

by cmslll

The meter feeds the whole house and the sprinkler system. I have measured it thru the house by filling a gallon jug in 30 seconds and timing it and reading the meter for 20 minutes and it read exactly 40 gallons but I was wondering even though it reads right at low volume is it possible to be off at high volume with the sprinkler system on if it could over meter?????

Monday, May 14th 2007, 9:05am

by HooKooDooKu

Does this water meter feed the whole house or is it strictly for the irrigation.

If it's for the whole house, why not try a direct measurement with a garden hose? Find any large thing that you know the size of (5 gallon bucket, 25 gallon trash can, etc). Since you think the meter might be off by as much as double, it should be easy see if it's even close.

If it's not feeding the whole house, is there some way to rig a part of it up for a direct measurement? For example, do you have a manifold designed for expansion that you could expand to add a hose spicket and again measure directly?

Sunday, May 13th 2007, 6:46pm

by jmduke7

In my area it is not real common to see a 2" meter on a residential job, so I am to assume it is a large system. 50 to 65 gpm on a 2" meter is not uncommon, so I am a little confused at to why they told you a maximum of 30-35 gpm. Maybe there was some sort of confusion on their part.

Best of Luck!

Sunday, May 13th 2007, 5:53pm

by cmslll


Thanks jmduke7, I had the sprinkler guys tell me what the max flow for each head on each zone was and they said that 30 to 35 gpm was the max flow total on any zone at one time. I checked them one by one and according to the meter they were flowing 50 to 65 gpm per zone and since the sprinkler pro said they could only do 30 to 35 I begin to suspect the meter.